Hair dryer



FIG. 1 is a perspective view of our new design for a hair dryer;

FIG. 2 is a left side elevation view of our new design;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevation view thereof; and,

FIG. 7 is a rear elevation view thereof.

We claim the ornamental design for a hair dryer, as shown and described.